MozBar

The all-in-one SEO toolbar for research on the go.
MozBar gives you instant metrics while viewing any page or SERP.
-Create custom searches by engine, country, region, or city.
-Quickly assess the Page Authority and Domain Authority of any site or page.
-Access and compare link metrics across pages while viewing any SERP.
-Find and highlight keywords on a page and differentiate links by type: Followed, No-Followed, External, or Internal.
-Expose page elements, general attributes, markup, and HTTP status.
-Export your search engine results page (SERP) analysis details to a CSV file.
Get more with a Moz Pro Subscription
-Unlock additional MozBar Premium features:
--Keyword Difficulty
-View the Keyword Difficulty score for any search term on any SERP in real-time.
-Page Optimization
-Get instant page optimization detail and content suggestions for any keyword on any page.
-More Metrics
-Dig deeper into page and SERP analysis data with root domain and subdomain links, unlimited Open Site Explorer reports and more.